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| author | Jan Kara <jack@suse.cz> | 2022-04-01 12:27:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-09 10:23:19 +0200 |
| commit | a107df383c163fdf9fdf748bc8f1a5e8f00d29c1 (patch) | |
| tree | 4458020fff12ac3ea9533a3423920ccb1878cf2d /block | |
| parent | e8821f45612f2e6d9adb9c6ba0fb4184f57692aa (diff) | |
| download | linux-stable-a107df383c163fdf9fdf748bc8f1a5e8f00d29c1.tar.gz linux-stable-a107df383c163fdf9fdf748bc8f1a5e8f00d29c1.tar.bz2 linux-stable-a107df383c163fdf9fdf748bc8f1a5e8f00d29c1.zip | |
bfq: Drop pointless unlock-lock pair
commit fc84e1f941b91221092da5b3102ec82da24c5673 upstream.
In bfq_insert_request() we unlock bfqd->lock only to call
trace_block_rq_insert() and then lock bfqd->lock again. This is really
pointless since tracing is disabled if we really care about performance
and even if the tracepoint is enabled, it is a quick call.
CC: stable@vger.kernel.org
Tested-by: "yukuai (C)" <yukuai3@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220401102752.8599-5-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block')
| -rw-r--r-- | block/bfq-iosched.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index e1183596de06..4ecfcb6e9a2d 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -6012,11 +6012,8 @@ static void bfq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, return; } - spin_unlock_irq(&bfqd->lock); - trace_block_rq_insert(rq); - spin_lock_irq(&bfqd->lock); bfqq = bfq_init_rq(rq); if (!bfqq || at_head) { if (at_head) |